Kotzinian-Mulders effect in semi-inclusive DIS within TMD factorization

Abstract

In this paper we study the Kotzinian-Mulders effect of a single hadron production in semi-inclusive deep inelastic scattering (SIDIS) within the framework of transverse momentum dependent (TMD) factorization. The asymmetry is contributed by the convolution of the Kotzinian-Mulders function $g_{1T}$ and the unpolarized fragmentation function $D_1$. As a TMD distribution, the Kotzinian-Mulders function in the coordinate space in the perturbative region can be represented as the convolution of the $C$-coefficients and the corresponding collinear correlation function. The Wandzura-Wilczek approximation is used to obtain this correlation function. We perform a detailed phenomenological numerical analysis of the Kotzinian-Mulders effect in the SIDIS process within TMD factorization at the kinematics of the HERMES and COMPASS measurements. It is found that the obtained $x_B$-, $z_h$- and $P_{h\perp }$-dependent Kotzinian-Mulders effect are basically consistent with the HERMES and COMPASS measurements.

8 figures, 11 pages

References in corpus (14)

• New parton distributions for collider physics
• Extraction of Spin-Dependent Parton Densities and Their Uncertainties
• QCDNUM: Fast QCD Evolution and Convolution
• Parton-to-Pion Fragmentation Reloaded
• Non-perturbative structure of semi-inclusive deep-inelastic and Drell-Yan scattering at small transverse momentum
• On the running coupling constant in QCD
• Understanding the large-distance behavior of transverse-momentum-dependent parton densities and the Collins-Soper evolution kernel
• Collins and Sivers asymmetries in muonproduction of pions and kaons off transversely polarised proton
• Measurement of Single and Double Spin Asymmetries in Deep Inelastic Pion Electroproduction with a Longitudinally Polarized Target
• QCD Evolution of the Transverse Momentum Dependent Correlations
• Predictions for double spin asymmetry A_{LT} in Semi Inclusive DIS
• Transverse spin effects in hard semi-inclusive collisions
• Double Spin Asymmetries $A_{LT}^{\cos {\varphi }_S}$ and $A_{LT}^{\cos (2{\varphi }_h-{\varphi }_S)}$ in semi-inclusive DIS
• Transverse single spin asymmetry $A_{UT}^{\sin ({\varphi }_h-{\varphi }_S)}$ for single hadron production in SIDIS